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Cambridge International AS and A Level Biology Coursebook with CD-ROM
Mary Jones, Richard Fosbery
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AQA A-LEVEL BIOLOGY PAPER 2 2023 - QUESTION PAPER
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This document contains the questions to the AQA A-Level Biology Paper 2 that was sat in 2023, get yours now to prepare for upcoming mocks and to use for practice.
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OCR 2023 Biology B H422/03: Practical skills in biology A Level Question Paper & Mark Scheme (Merged)
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Apoptosis is the programmed cell death of damaged or unwanted cells. 
(a) Fig. 1.1 shows a transmission electron micrograph (TEM) of apoptosis of a leucocyte. 
Fig. 1.1 
A 
B 
C 
(i) Name the following structures and processes shown in Fig. 1.1: 
• the structure labelled A forming in the cell surface membrane 
• the process occurring to the organelle labelled B 
• the structure labelled C. 
Structure A ...........................................................................................
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OCR 2023 Biology B H422/02: Scientific literacy in biology A Level Question Paper & Mark Scheme (Merged)
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1 This question is based on the Advance Notice Article ‘Development of therapeutic antibodies 
for the treatment of disease’. 
(a) (i) State what is meant by the term antigen. 
........................................................................................................................................... 
. ..................................................................................................................................[1] 
(ii) Scientists can combine antibody fra...
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OCR 2023 Biology B H422/01: Fundamentals of biology A Level Question Paper & Mark Scheme (Merged)
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2 
OCR 2023 
Section A 
You should spend a maximum of 40 minutes on this section. 
Write your answer for each question in the box provided. 
1 The image shows an erythrocyte after being placed in a solution. 
Which option explains the appearance of the erythrocyte? 
A The solution was distilled water. 
B The water potential of the solution is equal to the water potential of the cytoplasm of the 
erythrocyte. 
C The water potential of the solution was less negative than the cytoplasm of the eryth...
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OCR 2023 Biology A H420/03: Unified biology A Level Question Paper & Mark Scheme (Merged)
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(a) A light micrograph of a section through the trachea of a cat is shown in Fig. 1.1. 
Fig. 1.1 
A 
B 
C 
(i) Name the tissues labelled A and B in Fig. 1.1. 
A ........................................................................................................................................ 
B ........................................................................................................................................ 
[2] 
(ii) Name the two types of cell in the box labelled C in...
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OCR 2023 Biology AH420/02: Biological diversity A Level Question Paper & Mark Scheme (Merged)
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2 
OCR 2023 
Section A 
You should spend a maximum of 20 minutes on this section. 
Write your answer to each question in the box provided. 
1 Which option correctly describes a tissue? 
A A group of cells performing similar functions 
B A group of organs performing a specific function 
C A group of similar cells performing a specific function 
D A group of similar cells performing a variety of functions 
Your answer [1] 
2 Bone marrow stem cells are a source of erythrocytes. 
Which statement abo...
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OCR 2023 Biology A H420/01: Biological processes A Level Question Paper & Mark Scheme (Merged)
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2 
OCR 2023 
Section A 
You should spend a maximum of 20 minutes on this section. 
Write your answer to each question in the box provided. 
1 Which description of biological molecules is correct? 
A DNA and RNA are both polymers of nucleotides. 
B Hydrolysis of sucrose produces fructose and β-glucose. 
C Proteins are polymers of amino acids and are broken down in condensation reactions. 
D Starch is a polymer of the monosaccharide maltose. 
Your answer [1] 
2 Which statement about lipids is cor...
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OCR 2023 Biology A H020/02: Depth in biology AS Level Question Paper & Mark Scheme (Merged)
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(a) Fig. 1.1 shows two cubes that represent a large and a small multicellular plant. 
Fig. 1.1 
Large multicellular 
plant 
Small multicellular 
plant 
Length = 2cm 
Width = 2 cm 
Depth = 2cm 
Surface area : volume 
= 6:1 
(i) Using the data provided in Fig. 1.1, calculate the surface area : volume of the large 
multicellular plant. 
Surface area: volume = ..........................................................[2] 
(ii) Explain why a large multicellular plant needs a transport system but a sm...
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OCR 2023 Biology A H020/01: Breadth in biology AS Level Question Paper & Mark Scheme (Merged)
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Section A 
You should spend a maximum of 25 minutes on this section. 
Write your answer for each question in the box provided. 
1 Which statement describes a problem that has resulted from the increased use of antibiotics? 
A Penicillin can no longer be used to treat infections. 
B Rates of MRSA infection have increased. 
C Some bacteria and fungi have evolved resistance to antibiotics. 
D Viral infections can no longer be treated with antibiotics. 
Your answer [1] 
2 The diagram shows a compute...
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Class notes Biology | hormones, adrenaline
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GCSE biology notes on hormones, adrenaline and thyroxin. GCSE OCR gateway exam. Biology GCSE revision notes.
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Vitamin
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This document is about vitamins. It is a short topic and it has vitamin uses along with this
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